Puncture outfit and using method thereof

Abstract

The invention discloses a puncture outfit. The puncture outfit comprises a shell and an insertion tube, an inner cavity is formed in the shell; a filter layer is laid at the bottom of the inner cavity; one end of the insertion pipe is connected with the shell, and the interior of the insertion pipe is communicated with the inner cavity; the other end of the insertion tube is sharp and is used for penetrating into the abdominal cavity of a human body; an interface is formed in one side of the shell; a valve is arranged at the inner end of the connector and communicated with the inner cavity, and the outer end of the connector is communicated with an air inlet pipe of a smoke ventilator or an air outlet pipe of a pneumoperitoneum machine. The device has the advantages that the device is used for the smoke exhauster or the pneumoperitoneum machine, compared with an existing general puncture outfit, repeated mounting and dismounting are not needed, the sealing effect is good, the smoke exhausting effect and pneumoperitoneum establishment are guaranteed, and the operation is normally conducted.

Description

Technical Field

[0001] The present invention relates to a puncture device, in particular to a puncture device and a use method thereof. Background Art

[0002] During minimally invasive abdominal surgery, electric or ultrasonic scalpels are required. These two surgical instruments will burn human tissues, produce a large amount of debris, form smoke in the abdominal cavity, interfere with endoscopic imaging, and affect the doctor's surgical operation. Therefore, smoke exhaust is required in a timely manner; and abdominal surgery requires pneumoperitoneum to maintain vision. Continuous high-flow smoke exhaust will affect the pneumoperitoneum state. If the matching pneumoperitoneum machine fails to replenish air in time, it is likely to cause abdominal collapse and lead to interruption of the operation.

[0003] During minimally invasive abdominal surgery, a universal puncture device is required for puncture, an insufflator is used to establish pneumoperitoneum, and a smoke evacuator is required to exhaust smoke. However, neither the smoke evacuator nor the insufflator has a dedicated puncture device. The puncture device used in clinical surgery is a universal puncture device, which contains an instrument channel. This channel is generally not completely sealed. When the smoke evacuator is working, it will reduce the negative pressure during smoke exhaust, affecting the smoke exhaust effect and the normal progress of the operation.

[0004] Therefore, it is necessary to improve the prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a trocar and a method for using the trocar, which can ensure smoke exhaust effect and normal operation, in view of the deficiencies of the prior art.

[0006] The technical solution adopted by the present invention is: a trocar, comprising a shell and an insertion tube; The shell is provided with an inner cavity; the bottom of the inner cavity is paved with a filter layer; One end of the insertion tube is connected to the housing, and the interior of the insertion tube is connected to the inner cavity; the other end of the insertion tube is pointed and is used to pierce the abdominal cavity of a human body; An interface is provided on one side of the shell; a valve is arranged at the inner end of the interface, the valve is connected with the inner cavity, and the outer end of the interface is connected with the air inlet pipe of the smoke exhaust machine or the air outlet pipe of the insufflator.

[0007] According to the above solution, a pressure sensor is provided in the inner cavity.

[0008] According to the above scheme, the outer end of the interface is connected to an anti-backflow component, and the anti-backflow component includes a lower bend pipe and an inclined pipe; The lower bent pipe includes a single-sided vertical pipe and a lower U-shaped pipe; the upper end of the vertical pipe, the upper end of the inclined pipe and the interface are connected; the lower end of the vertical end is connected to one end of the U-shaped pipe; the other end of the U-shaped pipe, the lower end of the inclined pipe and the air inlet pipe of the smoke exhaust fan are connected, and a movable valve is provided at the connecting port.

[0009] According to the above scheme, the movable valve member includes a baffle and a float; the lower end of the baffle is hinged to the bottom of the smoke exhaust fan air inlet port, and the upper end of the baffle can be flipped around the hinged end; the float is installed on the outer side of the upper end of the baffle.

[0010] According to the above solution, the shell is spherical, the top of the shell is provided with an opening, and the opening is provided with a cover.

[0011] According to the above solution, the cover body is connected to the shell body through threads or snaps.

[0012] According to the above solution, the filter layer is medical gauze or medical cotton balls; the filter layer covers the communication port between the insertion tube and the inner cavity.

[0013] According to the above scheme, the puncture device also includes a circuit board, which is arranged in the cover body; the pressure sensor and the valve arranged at the inner end of the interface are respectively connected to the circuit board through cables, and the circuit board receives the pressure data sent by the pressure sensor to control the opening and closing of the valve.

[0014] The present invention also adopts a method of using the puncture device as described above for a smoke exhaust machine, the method comprising: The interface of the trocar is connected to the air inlet pipe of the smoke exhaust machine, and the valve at the interface is closed; then the tip of the insertion tube of the trocar is inserted into the abdominal cavity of the human body, and the smoke generated by the operation enters the inner cavity of the shell through the insertion tube; the pressure sensor in the inner cavity of the shell detects the pressure of the inner cavity, and when it is detected that the pressure of the inner cavity reaches the set pressure, the valve at the interface is opened, and the gas in the inner cavity enters the air inlet pipe of the smoke exhaust machine and is then discharged; when the pressure sensor detects that the pressure is lower than the set pressure, the valve at the interface is closed to block the smoke exhaust passage.

[0015] The present invention also adopts a method of using the puncture device as described above for a pneumoperitoneum machine, the method comprising: Connect the interface of the puncture device to the outlet pipe of the pneumoperitoneum machine, and open the valve at the interface; then insert the tip of the insertion tube of the puncture device into the human abdominal cavity, and start the pneumoperitoneum machine to inflate the abdominal cavity; the pressure sensor detects the abdominal cavity pressure, and when it is detected that the abdominal cavity pressure has not reached the set pressure, the pneumoperitoneum machine continues to start and inflate the abdominal cavity normally; when it is detected that the abdominal cavity pressure has reached the set pressure, the valves at the pneumoperitoneum machine and the interface are closed, and the inflation is stopped.

[0016] The beneficial effects of the present invention are: 1. The puncture device in the present invention is used for a smoke exhaust machine or a pneumoperitoneum machine. Compared with the existing general puncture device, it does not need to be repeatedly installed and disassembled, has a good sealing effect, ensures the smoke exhaust effect and the establishment of pneumoperitoneum, and allows the operation to proceed normally; the inner cavity is designed with a filter layer to filter large tissue debris and tissue fluid in the smoke, thereby improving the smoke exhaust effect.

[0017] 2. The present invention is designed with a pressure sensor. When used in a smoke exhaust machine, the interface of the puncture device is connected to the air inlet pipe of the smoke exhaust machine, and the pressure sensor in the puncture device is used to detect the intra-abdominal pressure. When the intra-abdominal pressure is lower than the set pressure, smoke exhaust is stopped, which can effectively prevent excessive smoke exhaust from causing abdominal collapse and affecting the surgical progress. When used in an insufflator, the interface of the puncture device is connected to the air outlet pipe of the insufflator, and the pressure sensor in the puncture device is used to detect the intra-abdominal pressure. When the intra-abdominal pressure reaches the set pressure, inflation is stopped, which can effectively prevent excessive inflation from causing excessive abdominal pressure and causing harm to the patient.

[0018] 3. The anti-backflow component designed in the present invention can effectively prevent tissue fluid / blood from being backflown into the smoke exhaust machine, causing equipment pollution or damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of embodiment 1.

[0020] Figure 2 It is a structural diagram of embodiment 2.

[0021] Figure 3 This is a schematic diagram of the cover body in the second embodiment being opened.

[0022] Among them: 1-insertion tube; 2-shell; 3-cover; 4-interface; 5-valve; 6-power supply; 7-circuit board; 8-pressure sensor; 9-cable; 10-filter layer; 11, baffle 11; 12, float; 13, vertical tube; 14, U-shaped tube; 15, inclined tube 15; 16, air intake pipe of the smoke exhaust fan. DETAILED DESCRIPTION

[0023] In order to better understand the present invention, the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1 like Figure 1 The trocar shown is specifically a trocar used in a smoke evacuator or an insufflator, comprising a housing 2 and an insertion tube 1; The housing 2 is provided with an inner cavity; the bottom of the inner cavity is paved with a filter layer 10; One end of the insertion tube 1 is connected to the housing 2, and the interior of the insertion tube 1 is connected to the inner cavity; the other end of the insertion tube 1 is pointed and is used to pierce the abdominal cavity of the human body; An interface 4 is provided on one side of the shell 2; a valve 5 is provided at the inner end of the interface 4 (i.e., the inlet end close to the inner cavity), and the valve 5 is connected to the inner cavity. The other end of the interface 4 is connected to the air inlet pipe 16 of the smoke exhaust machine or the air outlet pipe of the insufflator.

[0025] In the present invention, the tip of the insertion tube 1 of the puncture device is inserted into the abdominal cavity of the human body. When used in a smoke exhaust machine, the gas in the abdominal cavity enters the inner cavity of the shell 2 through the insertion tube 1, is filtered by the filter layer 10 in the inner cavity, and then flows into the air inlet pipe 16 of the smoke exhaust machine through the interface 4; when used in an insufflator, the gas discharged by the insufflator enters the abdominal cavity of the human body through the shell 2 to inflate the abdominal cavity.

[0026] In the present invention, the insertion tube 1 is a pointed hollow round tube made of medical stainless steel or medical plastic.

[0027] In the present invention, a valve 5 is disposed at one end of the interface 4 close to the housing 2 , and the valve 5 is used to control the on-off of the inside of the interface 4 .

[0028] Preferably, a pressure sensor 8 is provided in the inner cavity for testing the pressure of the abdominal cavity (after the abdominal cavity is connected with the inner cavity of the shell 2 through the insertion tube 1, the abdominal cavity pressure is consistent with the inner cavity pressure).

[0029] In the present invention, the housing 2 is spherical, and an opening is provided at the top of the housing 2, and a cover 3 is provided at the opening. The cover 3 is connected to the housing 2 by threads or snaps, and the inner cavity of the housing 2 forms a sealed environment. The design of the cover 3 facilitates the replacement of the filter layer 10 and the pressure sensor 8 inside the housing 2.

[0030] In the present invention, the filter layer 10 is medical gauze or medical cotton balls; the filter layer 10 covers the connecting port between the insertion tube 1 and the inner cavity. The design of the filter layer 10 can prevent large pieces of tissue debris or tissue fluid from contaminating the inner cavity of the housing 2 during smoke exhaust.

[0031] Embodiment 2 In addition to the above configuration, if Figure 2 and Figure 3 As shown, the outer end of the interface is connected to an anti-backflow component to prevent tissue fluid from being sucked back into the smoke exhaust machine during smoke exhaust, causing damage to the equipment. The anti-backflow component includes a lower bend pipe and an inclined pipe 15; The lower bent pipe includes a single-sided vertical pipe 13 and a lower U-shaped pipe 14; the upper end of the vertical pipe 13, the upper end of the inclined pipe 15 and the interface are connected; the lower end of the vertical pipe 13 is connected to one end of the U-shaped pipe 14; the other end of the U-shaped pipe 14, the lower end of the inclined pipe 15 and the air inlet pipe 16 of the smoke exhaust machine (or the air outlet pipe of the pneumoperitoneum machine) are connected, and the connecting port is provided with a movable valve.

[0032] Preferably, the movable valve member includes a baffle 11 and a float 12; the lower end of the baffle 11 is hinged to the bottom of the smoke exhaust fan air inlet pipe 16 port, and the upper end of the baffle 11 can be flipped around the hinged end; the float 12 is installed on the outer side of the upper end of the baffle 11 (located on one side of the inclined pipe 15).

[0033] In the present invention, the baffle 11 can be flipped to a vertical state outside the port of the smoke exhaust fan air inlet pipe 16 (that is, located below the inclined pipe 15) to close the connecting port (the port of the smoke exhaust fan air inlet pipe 16 is closed); the size of the baffle 11 is designed to be slightly larger than the size of the port of the smoke exhaust fan air inlet pipe 16, or a limiter is designed at the port of the smoke exhaust fan air inlet pipe 16, so that the baffle 11 cannot be flipped inside the smoke exhaust fan air inlet pipe 16.

[0034] The working principle of the anti-backflow component is: when there is no liquid in the U-shaped tube 14, the gas passes through the top of the U-shaped tube 14 and the smoke is exhausted normally (such as Figure 3 As shown, the float 12 of the baffle 11 is not affected by buoyancy, and the baffle 11 has not flipped to a vertical state); when liquid enters, the liquid will be blocked and fall into the U-shaped tube 14 below. When the liquid level in the U-shaped tube 14 continues to rise, the baffle 11 with the float 12 is affected by buoyancy, and its upper end flips and rises. When the baffle 11 flips to a vertical state, it is sucked by negative pressure to block the connecting port, thereby blocking the gas path.

[0035] A method for using a puncture device in a smoke exhaust machine, the method comprising: Connect the interface 4 of the puncture device to the air inlet pipe 16 of the smoke exhaust machine, and close the valve 5 at the interface 4; then insert the tip of the insertion tube 1 of the puncture device into the abdominal cavity of the human body, and the smoke generated by the operation enters the inner cavity of the shell 2 through the insertion tube 1, and large pieces of tissue debris or tissue fluid are filtered by the filter layer 10 at the bottom of the inner cavity; the pressure sensor 8 in the inner cavity of the shell 2 detects the pressure of the inner cavity, and when it is detected that the pressure of the inner cavity reaches the set pressure, the valve 5 at the interface 4 is opened, and the gas in the inner cavity enters the smoke exhaust machine and is discharged; when the pressure sensor 8 detects that the pressure is lower than the set pressure (the value is taken according to the actual situation), the valve 5 at the interface 4 is closed to block the smoke exhaust passage to prevent excessive smoke exhaust from causing abdominal collapse. The design of the anti-backflow component can prevent tissue fluid from being backflowed into the smoke exhaust machine during the smoke exhaust process, causing equipment damage.

[0036] In addition, the present invention can also use the pneumoperitoneum machine as a puncture device of the pneumoperitoneum machine. A method for using the puncture device for the pneumoperitoneum machine is as follows: Connect the interface 4 of the puncture device to the outlet pipe of the pneumoperitoneum machine, and open the valve 5 at the interface 4; then insert the tip of the insertion tube 1 of the puncture device into the abdominal cavity of the human body, start the pneumoperitoneum machine, and pump air into the abdominal cavity through the puncture device; the pressure sensor 8 detects the abdominal cavity pressure, and when it is detected that the abdominal cavity pressure does not reach the set pressure (the value is taken according to the actual situation), the pneumoperitoneum machine continues to start and pump air into the abdominal cavity normally; when it is detected that the abdominal cavity pressure reaches the set pressure, the pneumoperitoneum machine and the valve 5 at the interface 4 are closed, and the pumping is stopped. At this time, the anti-backflow component does not work.

[0037] In the present invention, the set pressure when used for the smoke exhaust machine and the set pressure when used for the insufflator are determined according to actual conditions.

[0038] The present invention can also introduce a circuit board 7, which is arranged in the cover body 3; the pressure sensor 8 and the valve 5 are respectively connected to the circuit board 7 through the cable 9, and the circuit board 7 receives the pressure data sent by the pressure sensor 8 to control the opening and closing of the valve 5. The valve 5 is a solenoid valve. The cover body 3 is also provided with a power supply 6 for powering the pressure sensor 8 and the valve 5, which can be a button battery. The pressure sensor 8 is used to test the real-time pressure of the abdominal cavity and send the pressure data to the circuit board 7, and the circuit board 7 receives the pressure data and compares it with the set pressure: when used for a smoke exhaust machine, if the real-time pressure is less than the set pressure, the circuit board 7 controls the interface 4 valve 5 to close and stop exhausting smoke, and if the real-time pressure exceeds the set pressure, the circuit board 7 controls the interface 4 valve 5 to open and allow exhausting smoke; when used for an insufflator, if the real-time pressure is less than the set pressure, the circuit board 7 controls the interface 4 valve 5 to remain open, and the insufflator is inflated, and if the real-time pressure exceeds the set pressure, the circuit board 7 controls the interface 4 valve 5 to close and stop inflating.

[0039] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0040] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein with equivalents. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A trocar, characterized in that: comprising a housing and an insertion tube; The shell is provided with an inner cavity; the bottom of the inner cavity is paved with a filter layer; One end of the insertion tube is connected to the housing, and the interior of the insertion tube is connected to the inner cavity; the other end of the insertion tube is pointed and is used to pierce the abdominal cavity of a human body; An interface is provided on one side of the shell; a valve is arranged at the inner end of the interface, the valve is connected with the inner cavity, and the outer end of the interface is connected with the air inlet pipe of the smoke exhaust machine or the air outlet pipe of the insufflator.

2. The trocar according to claim 1, characterized in that: A pressure sensor is arranged in the inner cavity.

3. The trocar according to claim 1, characterized in that: The outer end of the interface is connected to an anti-backflow component, and the anti-backflow component includes a lower bend pipe and an oblique pull pipe; The lower bent pipe includes a single-sided vertical pipe and a lower U-shaped pipe; the upper end of the vertical pipe, the upper end of the inclined pipe and the interface are connected; the lower end of the vertical end is connected to one end of the U-shaped pipe; the other end of the U-shaped pipe, the lower end of the inclined pipe and the air inlet pipe of the smoke exhaust fan are connected, and a movable valve is provided at the connecting port.

4. The trocar according to claim 3, characterized in that: The movable valve member comprises a baffle and a float; the lower end of the baffle is hinged to the bottom of the smoke exhaust fan air inlet port, and the upper end of the baffle can be turned around the hinged end; the float is installed on the outer side of the upper end of the baffle.

5. The trocar as claimed in claims 1 to 4, characterized in that: The shell is spherical, and an opening is arranged on the top of the shell, and a cover is arranged on the opening.

6. The trocar according to claim 5, characterized in that: The cover body is connected to the shell body through threads or buckles.

7. The trocar according to claim 6, characterized in that: The filter layer is medical gauze or medical cotton balls; the filter layer covers the communication port between the insertion tube and the inner cavity.

8. The trocar according to claim 1, characterized in that: The puncture device also includes a circuit board, which is arranged in the cover body; the pressure sensor and the valve arranged at the inner end of the interface are respectively connected to the circuit board through cables, and the circuit board receives the pressure data sent by the pressure sensor to control the opening and closing of the valve.

9. A method for using the puncture device as claimed in claim 2 in a smoke exhaust machine, characterized in that: The method is: The interface of the trocar is connected to the air inlet pipe of the smoke exhaust machine, and the valve at the interface is closed; the tip of the insertion tube of the trocar is then inserted into the abdominal cavity of the human body, and the smoke generated by the operation enters the inner cavity of the shell through the insertion tube; the pressure sensor in the inner cavity of the shell detects the pressure of the inner cavity, and when it is detected that the pressure of the inner cavity reaches the set pressure, the valve at the interface is opened, and the gas in the inner cavity enters the air inlet pipe of the smoke exhaust machine and is then discharged; When the pressure sensor detects that the pressure is lower than the set pressure, the valve at the interface is closed to block the smoke exhaust passage.

10. A method for using the trocar as claimed in claim 2 for a pneumoperitoneum machine, characterized in that: The method is: Connect the interface of the puncture device to the outlet pipe of the pneumoperitoneum machine, and open the valve at the interface; then insert the tip of the insertion tube of the puncture device into the abdominal cavity of the human body, and start the pneumoperitoneum machine to pump air into the abdominal cavity; the pressure sensor detects the abdominal cavity pressure, and when it is detected that the abdominal cavity pressure does not reach the set pressure, the pneumoperitoneum machine continues to start and pump air into the abdominal cavity normally; When it is detected that the abdominal pressure reaches the set pressure, close the valves at the pneumoperitoneum machine and the interface and stop pumping.

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